Counterfactual transfer guards ecological accounting against a specific error: counting the visible cost of an activity while ignoring the future it displaced. A system may consume enormous energy and still be a net ecological gain if it eliminates far larger energy use elsewhere; an automation that removes many jobs may also produce medical capacity that saves lives on a scale the job losses never approached. Neither can be judged by its measured costs alone.
So every serious analysis carries three scenarios rather than one — a baseline (what was already happening), the observed outcome, and plausible alternatives — and reads the transfer as the difference between them. It is the discipline that keeps ecological accounting from mistaking what is easy to see for what actually changed, and it pairs with the framework’s refusal of false precision: where the counterfactual is genuinely uncertain, the uncertainty is shown rather than hidden.